Here is the full list of all 10 Death: The Ascension achievements.
Sign Death contract
Lose your soul to death
Don't pay to play the God gamble
Gather all the card in a single match
Gather all the Death card in a single match
Lose on LUCKY "Damned Soul"
Become god on "LUCKY"
Become god on "UNLUCKY"
Become god on hard "DEAD"
Become god on hard with 3 soul heart on max corruption path